Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Body Control Module
The BCM controls:
- Battery saver function
- Delayed accessory function
- Dimmable backlighting
- Exterior lighting
- Exterior mirrors defrost
- Heated seats
- Horn
- Interior lighting
- Luggage compartment/liftgate release
- Parking aid system
- Perimeter anti-theft alarm
- Power door locks
- Post crash alert function
- Rear video camera
- Rear window defrost
- RKE transmitter (without push-button start)
- Wipers and washers
Refer to the appropriate article for system specific information and diagnostics.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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